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https://git.proxmox.com/git/wasi-libc
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446cb3f1aa
* Make __wasi_linkcount_t a uint64_t (#134) Refs: https://github.com/WebAssembly/WASI/pull/127 * Generate the WASI interface from witx. This replaces the hand-maintained <wasi/core.h> header with a <wasi/api.h> generated from witx. Most of the churn here is caused by upstream WASI renamings; hopefully in the future ABI updates will be less noisy.
25 lines
496 B
C
25 lines
496 B
C
#include <wasi/api.h>
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#include <errno.h>
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#include <unistd.h>
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#ifdef _REENTRANT
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#error With threads support, getentropy is not intended to be a cancellation point.
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#endif
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int __getentropy(void *buffer, size_t len) {
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if (len > 256) {
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errno = EIO;
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return -1;
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}
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int r = __wasi_random_get(buffer, len);
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if (r != 0) {
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errno = r;
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return -1;
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}
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return 0;
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}
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extern __typeof(__getentropy) getentropy __attribute__((weak, alias("__getentropy")));
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